Class

cats.syntax

ApplicativeErrorOps

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final class ApplicativeErrorOps[F[_], E, A] extends AnyVal

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Instance Constructors

  1. new ApplicativeErrorOps(fa: F[A])

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Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def adaptErr(pf: PartialFunction[E, E])(implicit F: ApplicativeError[F, E]): F[A]

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    Transform certain errors using pf and rethrow them.

    Transform certain errors using pf and rethrow them. Non matching errors and successful values are not affected by this function.

    Example:

    scala> import cats._, implicits._
    
    scala> def pf: PartialFunction[String, String] = { case "error" => "ERROR" }
    
    scala> "error".asLeft[Int].adaptErr(pf)
    res0: Either[String,Int] = Left(ERROR)
    
    scala> "err".asLeft[Int].adaptErr(pf)
    res1: Either[String,Int] = Left(err)
    
    scala> 1.asRight[String].adaptErr(pf)
    res2: Either[String,Int] = Right(1)

    This is the same as MonadErrorOps#adaptError. It cannot have the same name because this would result in ambiguous implicits. adaptError will be moved from MonadError to ApplicativeError in Cats 2.0: see https://github.com/typelevel/cats/issues/2685

  5. final def asInstanceOf[T0]: T0

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  6. def attempt(implicit F: ApplicativeError[F, E]): F[Either[E, A]]

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  7. def attemptT(implicit F: ApplicativeError[F, E]): EitherT[F, E, A]

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  8. def getClass(): Class[_ <: AnyVal]

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  9. def handleError(f: (E) ⇒ A)(implicit F: ApplicativeError[F, E]): F[A]

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  10. def handleErrorWith(f: (E) ⇒ F[A])(implicit F: ApplicativeError[F, E]): F[A]

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  11. final def isInstanceOf[T0]: Boolean

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  12. def onError(pf: PartialFunction[E, F[Unit]])(implicit F: ApplicativeError[F, E]): F[A]

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  13. def orElse(other: ⇒ F[A])(implicit F: ApplicativeError[F, E]): F[A]

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  14. def recover(pf: PartialFunction[E, A])(implicit F: ApplicativeError[F, E]): F[A]

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  15. def recoverWith(pf: PartialFunction[E, F[A]])(implicit F: ApplicativeError[F, E]): F[A]

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  16. def toString(): String

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